![Bati 🔅 on X: "C'est le 11 décembre 1978 que son dernier meurtre a été celui du jeune Robert Piest, qui était allé chez Gacy pour une offre d'emploi. La mère du Bati 🔅 on X: "C'est le 11 décembre 1978 que son dernier meurtre a été celui du jeune Robert Piest, qui était allé chez Gacy pour une offre d'emploi. La mère du](https://pbs.twimg.com/media/EZILmLBX0AEi_Ez.jpg)
Bati 🔅 on X: "C'est le 11 décembre 1978 que son dernier meurtre a été celui du jeune Robert Piest, qui était allé chez Gacy pour une offre d'emploi. La mère du
![Gacy's house at 8213 W. Summerdale Ave. in unincorporated Norwood Park Township at the time of his arrest Dec. 22, 1978. (William Yates/Chicago Tribune) Gacy's house at 8213 W. Summerdale Ave. in unincorporated Norwood Park Township at the time of his arrest Dec. 22, 1978. (William Yates/Chicago Tribune)](https://graphics.chicagotribune.com/john-wayne-gacy-new-timeline/img/piestmissing_dec111978.jpg)
Gacy's house at 8213 W. Summerdale Ave. in unincorporated Norwood Park Township at the time of his arrest Dec. 22, 1978. (William Yates/Chicago Tribune)
![Kori Rumore Finley on X: "Gacy's name is not connected to these disappearances until Robert Piest, an honor student and sophomore at Maine West, goes missing on his mother's birthday: https://t.co/Pu3hRZ6zHw" / Kori Rumore Finley on X: "Gacy's name is not connected to these disappearances until Robert Piest, an honor student and sophomore at Maine West, goes missing on his mother's birthday: https://t.co/Pu3hRZ6zHw" /](https://pbs.twimg.com/media/FHJNZ_9XsAAA4e7.jpg:large)
Kori Rumore Finley on X: "Gacy's name is not connected to these disappearances until Robert Piest, an honor student and sophomore at Maine West, goes missing on his mother's birthday: https://t.co/Pu3hRZ6zHw" /
![Eugenia Godzik (mother of victim Gregory Godzik) with Kerry Piest (sister of victim Rob Piest) and a man (whose identity is unknown to me) after John Wayne Gacy's guilty verdict (800 × 639) - 9GAG Eugenia Godzik (mother of victim Gregory Godzik) with Kerry Piest (sister of victim Rob Piest) and a man (whose identity is unknown to me) after John Wayne Gacy's guilty verdict (800 × 639) - 9GAG](https://img-9gag-fun.9cache.com/photo/ango1Zb_460s.jpg)
Eugenia Godzik (mother of victim Gregory Godzik) with Kerry Piest (sister of victim Rob Piest) and a man (whose identity is unknown to me) after John Wayne Gacy's guilty verdict (800 × 639) - 9GAG
Defense Diaries on Instagram: "Gacy's last victim, 15 year old Robert Piest. His disappearance leads the police directly to Gacy's doorstep. Episode 2: The Last Piest of the Puzzle. Available May 6th
![Une veste en nylon bleu appartenant au sophomore Robert Piest du Maine West a été trouvée dans la maison de John Wayne Gacy. (Photo par Erin Hooley/Chicago Tribune/TNS/Sipa USA Photo Stock - Une veste en nylon bleu appartenant au sophomore Robert Piest du Maine West a été trouvée dans la maison de John Wayne Gacy. (Photo par Erin Hooley/Chicago Tribune/TNS/Sipa USA Photo Stock -](https://c8.alamy.com/compfr/2et7h1n/une-veste-en-nylon-bleu-appartenant-au-sophomore-robert-piest-du-maine-west-a-ete-trouvee-dans-la-maison-de-john-wayne-gacy-photo-par-erin-hooley-chicago-tribune-tns-sipa-usa-2et7h1n.jpg)
Une veste en nylon bleu appartenant au sophomore Robert Piest du Maine West a été trouvée dans la maison de John Wayne Gacy. (Photo par Erin Hooley/Chicago Tribune/TNS/Sipa USA Photo Stock -
![Kenneth Piest, older brother of victim Rob Piest, attending the John Wayne Gacy trial while accompanied by his girlfriend/future wife Krystyna Srodulski : r/TrueCrimeDiscussion Kenneth Piest, older brother of victim Rob Piest, attending the John Wayne Gacy trial while accompanied by his girlfriend/future wife Krystyna Srodulski : r/TrueCrimeDiscussion](https://preview.redd.it/9moblsgwo4c91.jpg?width=640&crop=smart&auto=webp&s=e5956fb64c57495d19efad02f1ae46844b698fc0)